DOCHMIUS DUODEN ALIS AND ANGUILLULyE. 82? 
that of the spawn or larvae of the three helminthic species 
studied, which in our case are the cause of the anaemia. 
And as it might easily happen that some or even a certain 
number of labourers might escape the most minute clinical 
examination, so, to hinder the dissemination of the infecting 
germs, the excrements should be carefully collected and 
disinfected with such solutions, saline, acid, simple or com¬ 
plex, or with such other means as I recognised to have the 
privilege of hindering the fructifying of the eggs, the deve¬ 
lopment and life of the larvae. Amongst the substances 
calculated to produce these beneficial results, I limit myself 
to the indication of the most economical and efficacious, 
such as the concentrated solutions of chloride of sodium, dilu¬ 
tions of ferric acid of at least 2 per cent., of sulphuric or 
hydrochloric acid to the strength of 20 and more per cent., 
and, above all, of the vermicide liquid Deperais, that may, 
perhaps, find an extended and economical practical applica¬ 
tion in the works that occupy us. 
In any case the careful collection and torrefaction of the 
faeces of the labourers in the first twelve hours (if possible, 
even immediately) would constitute a sure means of hinder¬ 
ing the development of infective germs. It would be suffi¬ 
cient even with a particular system of tribulation and heating 
the alvine matters to a temperature of 50° C., to he after¬ 
wards used safely as manure. With these rules even the 
infected labourers could not in any way spread the disease, 
and they themselves would be preserved from successive 
hurtful infections of the same parasitic species. The 
waters and other drinks that might be in any way contami¬ 
nated by the larvae of the nematodes in question should be 
heated to 55—60° C. to render them wholesome, non-infec- 
tant. The food that is eaten raw or half-raw (salads, e. g.) 
should always be carefully washed, so as to be sure of their 
perfect purity. 
In the patients of the Gottardo the organic strength should 
be sustained with food of easy digestion, very nourishing, 
aided by the best tonics and reconstituents, proceeding at 
the same time to the killing of the nemato-helminthic species 
that constitute the fundamental cause of the oligoemia. I 
am profoundly convinced that none of the patients subjected 
to treatment with the best anthelmintics, with a good meat 
diet and generous wine, need succumb, unless the anaemia 
have arrived at that extreme degree in which the organic 
faculties cease to regenerate the blood; still less if at the 
same time they take preparations of iron and bitters. The 
experimental results of the action of divers substances on 
